mistake
Parece que has cometido un error tonto.
It seems you've made a silly mistake.
El servidor encontró un error temporal y no pudo completar su orden.
The server encountered a temporary error and was unable to complete your order.
Y eso habría sido un error, porque son maravillosas.
And that would have been a mistake, because they are wonderful.
— Cinema Paradiso (1988)
Pensé que era un error decirle a Tom dónde enterramos el tesoro.
I thought it was a mistake to tell Tom where we buried the treasure.
Supongamos que este señor ha cometido un error.
Let's suppose this gentleman has made a mistake.
No puedo evitar pensar que estás en un error.
I can’t help thinking that you’re mistaken.